Inventory control system and apparatus



Y IML R. H. DAMON ET AL 2,241,480

INVENTORY CONTROL SYSTEM AND APPARATUS Filed NOV. 6, 1939 9 Sheets-Sheet l Roberi H. Damon. Clarence F. Rogo'er John W. Baum Thom Emu,

INVENTORS.

ATTORNEY.

y L 1941- R. H. DAMON ET AL. 9 1 80 INVENTORY CONTROL SYSTEM AND APPARATUS Filed NOV. 6, 1959 9 Sheets-Sheet 2 Roberi H. Damon CZarenceFRogder John W. Baum ThomasE/(ulo INVENTORS. 5 08 ATTORNEY.

y 1941- R. H. DAMON ET AL 2,247,4U

INVENTORY CONTROL SYSTEM AND APPARATUS I Filed NOV, 6, 1959 9 Sheets-Sheet 5 Robert H. Damon Clarence? RogLeT John W. Bau'r 45$ 49 Thomas E. Kulo INVENTORS. 44s

ATTORNEY.

Filed Nov. 6, 1939 9 Sheets-Sheet 4 o mwfi aDn DFQM. HwB m r nw Yfi m er 0 Mm? RCJ INVENTORS ATTORNEY.

li'fil 1, 1941.

R. H. DAMON ET AL INVENTORY CONTROL SYSTEM AND APPARATUS Filed Nov. 6, 1939 9 Sheets-Sheet 5 R'oberl H. Damon Clarence F. R

oger Jbhn W. Baur ThomasEKulo INVENTORS.

m M m,

H m O m .l'uly 1, 1241- R. H. DAMON ET AL INVENTORY CONTROL SYSTEM AND APPARATUS Filed Nov. 6, 1939 I 9 Sheets- Sheet 6 Robert H. Damon Clarence F Roger John'W. Baum ThomasEKulo INVENTORS.

A TTORNEY.

[55 BY l4! A was 15/ y 19414 R. H. DAMON ETAL ,247,480

- INVENTORY CONTROL SYSTEM AND APPARATUS Filed Nov. 6, 1939 9 sheets-sheet 7 57 Robert H. Damon, Clarence FRogLe'r JohnW. Baum F [1}- ThomasEKuZo INVENTORS.

ATTORNEY.

- July 1, 1941. R. H. DAMON ET AL INVENTORY CONTROL SYSTEM AND APPARATUS 9 Sheets-Sheet 8 Filed Nov. 6, 1959 ogLer uri m T N E V m RobeTZH. Damon Clarence F. R John W. Ba

Thomas EKulo ATTORNEY.

y 1, R. H. DAMON ETAL 1 2,247,480

INVENTORY CONTROL SYSTEM AND APPARATUS Filed Nov. 6, 19 39 9 Shets-Sheet 9 Roberl Daf non' Clarence FR gLer John W. Ba u,r Thomas EKulo INVENTORS.

@ FWWKW ATTORNE Patented July 1, 1941 mvau'ronr common srs'mm AND arraas'rus Robert H. Damon, Clarence F. Rogier, John W.

B3111; and Thomas E. Kulo, Chicago, 111., assignors to S. F- Bowser a Company, Incorporated,

-Fort Wayne, Ind., a corporation of Indiana Application November 6, 1939, Serial No; 303,03

19 Claims.

This invention relates to a liquid dispensing system which is designed to control and release for resale, an inventory of liquid stored in the system. More specifically, the invention relates to a system comprising the combination of a locked storage tank and a sealed delivery system which includes a dispensing apparatus, together with a token or check operated predetermined mechanism, in which system the token serves as.

a key to release, for resale from said system, a predetermined amount of liquid and serves also as the instrument for transferring possession and/or title of said predetermined amount of liquid to the reseller at an established wholesale price.

In the distribution of liquids, for example, the distribution of gasoline by wholesalers or refiners to retailers or other resale agencies, the cost of distribution is a very serious item of expense to the wholesaler. This distribution is at present made on order or the reseller and the amount of gasoline to be delivered to the reselling station is determined solely by the management of such station.

The size of the individual dump is severely reduced by the practice oi "hand to mouth buying which has become established in many industries. and consequently, the number or dumps required is increased with the result that the cost of delivery of gasoline by the wholesaler is exorbitantly high.

Another problem which-arises under the present distribution methods is that of preventing the sale, under the wholesalers brand or name, of

products'not produced by said wholesaler, which substituted products are commonly termed in the case of gasolines bootleg gas. The liquid dispensing system is under the sole control of the reseller and the wholesaler is powerless to prevent such practices.

One solution for these problems is disclosed in the application of Robert Hosken Damon, Serial No. 285,627, and the invention disclosed in this application has as one of its objects the provision of a combination of elements forming a system which will enable the Damon method to be eflectively carried out.

Another object of the invention is to provide a system and apparatus which will control the inventory of liquid at the resale station and which will protect both the wholesaler and the reseller against losses by fraud, and otherwise.

A further object of the invention is to provide a dispensing system which is sealed throughout.

Yet another object of the invention is to provide, as a part 01' the protection scheme, a system of locks which require the presence or both parties to a transaction before the locks can be opened. i I

Still another object oi the invention is to provide a dispensing and predeterminer apparatus which will receive and accumulate a token or tokens representing a predetermined amount of liquid, and which will release such amount oi liquid for resale.

Another object of the invention is to provide a predeterminer device which will terminate dispensing operation 01. the dispensing unit when the amount of liquid released by a token or tokens is exhausted.

A further object of the invention is to provide a token collecting and predeterminer unit which retains the token or tokens against removal by anyone until the delivery of the predetermined amount of liquid represented by a token is completed, whereupon a token or check is released and, in eflect, collected. In other words, the machine, in effect, holds the token in escrow pendirig the completion of the transaction which was initiated by the reseller.

Another object of the invention is to provide a sealed storage and dispensing system which is under control of both the wholesaler andthe reseller with the object oi giving the wholesaler control of the product which enters the system. This enables the wholesaler to prevent the substitution of other products in the place of those being supplied by him and assures the reseller's customer that the product sold to him is in fact the product of the wholesaler indicated by the advertising used in conjunction with the system.

Still another object of the invention is to provide a liquid dispensing system usually applied to the ordinary gasoline service station which will be normally capable of intermittent delivery operation at the will of the reseller by manipulation of the controls provided on the liquid dispensing apparatus, but which is subject to ultimate control by a. token, coin or check controlled predeterminer device.

Yet another object oithe invention is to produce a liquid dispensing apparatus which is under the control of a predeterminer mechanism which can be preset to permit the delivery of one of several amounts of liquid from the dispensing apparatus, and which can be preset to permit the delivery of a different predetermined amount even though delivery of the initial predetermined amount has been partly accomplished.

A further object of the invention is to provide a predeterminer equipped liquid dispensing apparatus, for gasoline or the like, which may be preset by a service station operator to terminate a cycle of operation after the dispensing of a predetermined amount, and which may be adjusted by the operator to increase the length of the cycle after the cycle has been entered upon.

Another object of the invention is to provide a predeterminer equipped liquid dispensing apparatus which will retain a token or plurality of tokens in an inaccessible position and which will discharge said tokens to an accessible position when the liquid represented by said tokens has been dispensed.

Other objects will be apparent from the study of the specification and the drawings which are attached hereto and made a part hereof and in which Figure 1 is an elevation of the token controlled predeterminer with the outer door removed.

Figure 2 is an elevation with parts broken away showing the token controlled liquid dispensing system Figure 3 is a partial sectional view of the fill pipe and its closure.

Figure 4 is a partial sectional view showing the gear reduction and flexible shaft drive at the meter.

Figure 5 is a section taken on the line 5-5 of Figure 1 showing the token selector mechanism.

Figure 6 is an elevation showing a token adapted to be received in the selector mechanism of Figures 1 and 5.

Figure '7 is an elevation showing a modified form of a selector mechanism.

Figure 8 is an elevation with parts broken away of the token controlled predetermining device.

Figure 9 is an exploded top view of the gearing of Figure 8 with some of the shafts moved out of actual position and some distorted for clarity.

Figure 10 is a sectional view taken on the line ll0 of Figure 8. v Figure 11 is a sectional view taken on the line iiil of Figure 8.

Figure 12 is a section taken on the line ii -I2 I of Figure 8. V

Figure 13 is a section taken on the line i3i3 of Figure 9.

Figure 14 is a section taken on the line lfl-it of Figure 13.

Figure 15 is a section taken on the line l-l5 of Figure 8.

Figure 16 is a view similar to Figure 15 showing the token carrying plate in its farthest idle position.

Figure 17 is an elevation showing a switch pawl in engaged relation with the star wheel and stop cam.

Figure 18 is a view similar to Figure 17 but showing the follower on the periphery of the shutoff cam.

Figure 19 is a sectional view taken on the line i9-l9 of Figure 8.

Figure 20 is a view taken on the line 2ii-2fl of Figure 2 showing the interlock mechanism.

Figure 21 is a diagram of the electric wiring of the dispensing apparatus.

Figure 22 is an elevation showing the switch operating cam and pawl.

Figure 23 is a section taken on the line 23-23 of Figure 12.

GENERAL ORGANIZATION Referring to Figure 2, the numeral I indicates a storage tank which is usually disposed under ground and which is fitted at its top with a vent pipe 3. The latter rises above ground to a height usually regulated by law and is capped with a return bend 5 or other fitting which prevents entrance of rain, etc. This pipe usually extends upward beside a. building and projects above the roof thereof.

A fill pipe I is also connected with the top of tank i and terminates at a point above the ground level or in a fill box which is set into the ground or into a driveway so that the upper surface of the box is fiush with the surface of the ground or drive way. The fill box is usually provided with a plug to render it water tight, while the above ground pipe such as is shown in Figure 1 is usually fitted with a common pipe cap 9 to prevent the entrance of water, etc.

As shown in Figure 3, the pipe 1 is provided with a counter :bore 8 into which is pressed 9. bushing 80. A plug I2 is fitted into the bore of the bushing and supported on the upper end thereof and carries a rotatable locking member I 4 which rotates about an axis eccentric to the axis of the bushing, so that when the member occupies the position shown, it will engage the lower end of the bushing and lock the plug in place therein. A four-way lock is is fitted into the plug and controls the locking member. When the proper key is inserted and rotated, the locking member is rotated away from the position shown and will disengage the end of the bushing so that the plug may be withdrawn. However, the key can be withdrawn only when the locking member occupies the position shown.

The specific construction of the pipe closure is not the invention of applicants except as it forms an element of the combination forming the dispensing system. Complete details of the closure and the arrangement and construction of the various parts of the closure .are found in the application filed by Harvey E. Marvel, Serial No. 302,961, filed concurrently herewith.

Referring again to Figure 2, a suction pipe ll enters the tank i and is provided with a foot valve l3. The upper end of the pipe is connected through a screen chamber, not shown, to the suction chamber of pump 15. An air eliminator shown generally by I9 receives liquid from the discharge side of the pump, and liquid passes from the separator through a combined check and relief valve, not shown, to a meter 2| and thence by pipe 23 through the usual sight glasses and hose to "a valve controlled nozzle 21.

A motor ll which is controlled by a switch 29 drives the pump I5. A link 3! connects switch 29 for operation by a hose hook lever 33 which is pivoted to a bracket 4| which is fixed to the frame of the machine. A lever 35 carrying a projection 31 is pivoted on lever 33, and in the position shown, the projection is disposed close enough to a fixed abutment 39 so that the lever 33 cannot be fully raised until lever 35 is swung upwardly and counter-clockwise, and this latter motion is prevented so long as the nozzle is on the hook.

An interponent is pivoted on the lever 33 and cooperates with an interlock mechanism shown in Figure 20. A reset shaft -41 extends through the register 13 and-fixedly carries a disk 49 which is notched at 5| to receive a seeker 65 on 45. This seeker has an internal cam 61. A second disk 53 is rotatably mounted on shaft 41 and is provided with notch 55 adapted to receive seeker and with notch 59 adapted to receive pawl 63. Apin 6! on disk 49 projects through 53 and a spring 51 holds the disks in the relative positions shown. The other end of the spring 51 Is fastened to a pin 59 which is fixed in the disc 53 on the face adjacent the disc 99. In normal "switch-off position the notches i and 55 are In the relative position shown in Fig. 29, except rotated189 degrees.

As shaft 41 is rotated to reset the register before a dispensing operation, pawl 93 engages notch 59 and positions notch 55 above seeker 35. Further rotation of shaft 41 rotates disk 99 against the action of spring 51 to also position notch 5| above seeker 65, thereby aligning the notches. Lever 33 may then be raised whereupon the seeker enters aligned notches 5| and 55, and the link 3| turns on the switch to start motor I1, the pawl 63 is cammed out of notch 59 by the cam 61 when it moves upwardly with the seeker and disk 53 rotates a slight distance further under the action of spring 51 so that pawl 63 cannot reengage notch 53 when the lever 33 is again lowered to open the switch. when this latter event occurs, the disk 53 rotates under action of the spring to move notch 55 out of alignment with seeker 95 and the lever 33 cannot again be raised without again going through the resetting cycle as just described.

Referring to Figures 2 and 4, the meter 2| drives a shaft 69 by meansoi gearing 1i and the register 13, which may be a volume, cost or combined volume and cost register, is driven by said shaft.

A helical gear 15 (Fig. 4) is connected to be driven by shaft 99 and it, in turn, drives a helical gear 93 which is fixed to a shaft 95. The latter is provided with a bore 91 and broached to provide a pair of diametrically opposite keyways 99. A housing I95 is provided with a bore to receive the shaft 95. ,Bosses I99 are formed integrally with the housing and are perforated to receive bolts I91 which secure the housing to the register frame.

A flange plate III is fixed to the housing by fastenings H3 and is fixed as by a soldered joint to one end of a sheath 11 of a flexible shaft IOI.

The end of the shaft is adapted to be received in bore 91 and is provided with ears or keys I93 which are received in the keyways so that rotation of shaft 95 is imparted to the flexible shaft IN.

The flexible shaft 11, I9I is connected to drive a token operated predetermining mechanism shown generally by the numeral 19. Conduits and junction boxes 8i, 93, 95, 91 and iii connect the switch 29 and the predeterminer mechanism to the power line. While the device 19 is shown mounted on the housing of the dispensing apparatus it is, of course, within the scope of this invention to mount it in a different location, even one remote from the dispensing apparatus so long as the movement of the meter can be transmitted by the flexible shaft to the device. The conduit connections could, of course, be modified to meet the situation.

The token operated predeterminer meter driven section Referring to Figure 8, the casing III of the flexible shaft is fixed in a flanged collar I I9 in any suitable manner, and the collar is attached to the dispenser housing I I1 and to the casing I21 by means of seal screws H9. The drive cable I9I of said shaft is provided with keys which enter keyways I2I in the gear I23 (see Figure 9). The latter is provided with a shouldered recess I25 which is received in a back plate I21 of the predetermining mechanism. A pilot bearing I29 is supported on a bracket I3I which is suitably fixed to the back plate.

The gear reduction mechanism shown in Figure 4 is so designed that the gear I23 will be driven at a speed of one revolution per gallon of liquid dispensed by the meter 2|.

As shown in Figures 9, 10 and 11 the gear I23 has twelve teeth and is in mesh with a sixtytooth gear I33 which is fixed to hub I35 which. in turn, rotates freely upon the shaft I31. A spacer I39 separates the gear I33 from a second gear III of twenty-four teeth fixed to the hub I35.

A stud H3 is fixed in the back plate I21 and has rotatable thereon a huh I which has fixed thereon a forty-eight-tooth gear I45, and a twelve-tooth pinion I41 is formed as a part of said hub.

A hub I99 is mounted for rotation on shaft I31 adjacent the hub I35 and has fixed thereto a, sixty-tooth gear I5I which meshes with the pinion I41. A twenty-four-tooth pinion I53 is fixed to hub I49 and separated from gear IN by a spacer. This pinion meshes with a fortyeight-tooth idler gear I55 which is mounted to rotate about the stud I43. The idler I55 meshes with a twenty-four-tooth gear I51 which is fixed to a hub I59. The hub is fixed to a shaft I9I which drives the fifty-gallon pointer I93 with respect to the fifty-gallon dial I65 which is fixed to the front plate I61. The hub I49 also carries a locking disk I59 which carries a five-tooth gear segment I1I, as clearly shown in Figure 11. j

A bracket I13 (Figure 23) is fixed to the back plate I21 and carries a bearing I15 which enters one end of a pinion indicated generally by I11. The other end of the pinion carries a projection I19 which enters the back plate I21. The por tion I3I of the pinion, shown also in Figure 11, has eight teeth with diametrically opposite gaps I33 where two teeth have been cut away on each side. The end I of the pinion is a full twelvetooth pinion as shown in Figures 12 and 23. The gaps I83 of the portion I9I of the pinion are normally in sliding engagement with the locking disk I69; however, when the gear segment I" comes into position adjacent the pinion it will rotate the pinion through the distance of four teeth, whereupon the locking disk will slidably engage the other gap in the pinion. The upper portion of the pinion I 95 is always in engagement with a sixty-tooth gear I91 which is fixed to a hub I 99 which rotates loosely on the shaft I31. In Figure 9 the pinion H1 is shown longer than it actually is, and as shown comprises only the portions I99 and I95 thereof.

A forty-tooth gear I9I is spacedly mounted on the hub I99 and meshes with a forty-tooth gear I99 which is fixedly mounted on a hub I95 which is fixed to the shaft I91 supported in the front and back plates. A pointer I99 is fixed to the shaft I91 and rotates with respect to a dial later to be described. The gear I9I carries a bracket 999 and a stud 293 is fixed into the bracket 29I and carries a. pawl 299 which is provided with a hub 299. The hub 299 is disposed between the pawl 995 and the bracket 29L The pawl 295 carries the cam follower 291. A second arm 299 is fixed to the pawl 995 and carries a star wheel engaging nose ZI I. A spring post 9I3 is fixed to the outer end of 299 and a second spring post M9 is fixed in the gear I9I and a spring ZII is suspended between the two posts and urges both ,mounted' in fixed relation on the hub 225. The

lever 229 carries a crank pin 231.

Predeterminer presetting section The outer end of shaft 131 has fixed to it a thumb knob 233 as shown in Figures 1 and 8.

A hub 2'35 shown in Figures 8 and 9 is pinned to the shaft 131 and has fixed to it a non -return ratchet 231 which is provided with two diametrically opposed sets of teeth as shown in Figures 15 and 16. A spacer 239 is interposed between the hub 235 and the ratchet 231. Two plates 241 are fixed in diametrically opposite positions on the ratchet 231 and are cut away at 243 and 245 to form diametrically opposite token receiving recesses indicated generally by the numeral 241. The plates 231 are also cut away at 249 to form an annular passageway 251 between said plates and the spacer 239. A pin 253 is fixed in the front plate 161 and rides in the passageway 251 and serves to force any tokens which may be stuck in a recess 241 out of said recess.

A pawl 255 is pivotally mounted on a stud 251 which is fixed in the front plate and is urged counter-clockwise (see Figure 15) into engagement with the teeth of the ratchet 231 by means of a spring 259 which at one end engages the pawl and at the other engages a pin 261 fixed in the front plate.

A locking pawl 263 (Figures 15 and 16) is pivotally mounted on a shaft 265. The locking pawl is provided with an arm 251 which, in turn, is provided with a pin 269. A pin 211 is fixed in the front plate and a sprin 213 is suspended between the pins 269 and 211. The spring tends to rotate the pawl in a clockwise direction about the shaft 265. The arm 215 of the pawl is provided with a projection 211 which is adapted to abut a hub 219 of a cam follower lever 281. The arm 215 is also provided with an abutment 283 and a follower surface 285.

The purpose of this mechanism is to prevent rotation of the thumb knob 233 to a point at which the full stroke pawl 255 will engage the full stroke ratchet 231 unless a token has been nserted in the recess 251. Should the knob be turned in the direction of the arrow in Figure 16 without t e i sert on of a token, the follower surface 285 will ride upon the outer peri hery of the lower plate 251 until the recess 231 is reached. whereupon s ring 213 will rotate the awl clockwise unt l the projection 211 engages the stop 219. In this position of the pawl the abutment 283 will be in a position to engage the upper edge 291 of the recess 241 as shown in full lines in Figure 16. It will be noted that the full stroke pawl 255 is not yet in engagement with the teeth of the full stroke ratchet.

The pawl 263 is so designed and positioned as to permit a movement of the thumb knob through about 75 degrees in moving the full stroke ratchet 231 from the position shown in Figure 15 to that shown in Figure 16. Accordingly, if the full stroke pawl is not to be engaged in the position shown in Figure 16 the teeth of the full stroke ratchet will have to be cut away for a distance slightly in excess of the 75 degrees mentioned above.

In the event a token is inserted in the recess 241 before the thumb knob is turned, the follower surface 285 on pawl 263 will engage the periphery of the token and will be held in the position shown in dotted lines in Figure 16 so that the abutment 283 will not engage the edge of the recess 241. Consequently, the thumb knob and the shaft 131 may be turned far enough to ene the full stroke pawl and ratchet. Once this e agement has been efi'ected the thumb knob and shaft 131 cannot be rotated in a clockwise direction until a complete presetting cycle has been effected.

A switch operating cam 239 which is fixed to rotate with the hub 235 is disposed on the extreme right-hand end of said hub as seen in Figure 9. The cam is provided with two diametrically opposite notches 291 which may be undercut as shown in Figures 15 and 22 and are located at the center line which passes through the center of shaft 131 and the recesses 291. The cam is so designed that a land extends from each of said notches for a distance of 75 degrees in a clockwise direction, as viewed in Figure 15, before a rise is encountered. From this point the cam rises to the full height of the notch more or less.

abruptly so that the switch will be opened after the full stroke mechanism is engaged but before the shut-oil cam 313 is actuated far enough to close switch 399 (Fig. 13). Closing the switch 399 conditions the circuit for a dispensing operation on subsequent closing of switch 29.

The cam follower pawl 281 is positioned to ride on the cam 289 just described. It comprises a downwardly extending arm 293 which is adapted to engage a pin 295. The pin is fixed in a switch operating lever 291, shown fully in Figures 13, 17 and 18, which is pivotally mounted on the shaft 161. A pin 299 is mounted in the front plate and a spring 3111 is suspended between said pin and a perforation in the lever 291. The spring tends to rotate the lever 291 in a clockwise direction (Figures 10, .13 and 15) and this motion is transmitted through the pin 295 and arm 293 to the lever 281 which is accordingly held in engagement with the cam 289.

The lever 291 is provided with a bent-over ear 393 which is perforated and threaded to receive an adjusting screw 395 which may be locked in place by a suitable lock nut.

A switch box 391 is mounted on the back plate 121 by means of suitable fastenings and a normally 'open switch 399 is mounted in the switch box. A push rod 311 is mounted to slide radially in and out of said switch box to operate the switch 399. A spring 313 encircles the outer end of said push rod and engages a flange 315 thereon. A snap ring 311 is mounted on the inner end of said push rod to prevent it from being drawn out through the switch box. The spring 313 normally retains the push rod out of engagement with the switch operating button 319. The push rod 311 is mounted in an oilless bushing 321 which is mounted in the switch box. The switch box 301 is explosion proof.

Pivotally mounted on the pin 295 is one end of a link 323, the other end of which is pivotally mounted on a pin 325 which is fixed in a star wheel 381 later to be described.

Referring again to Figures 9, 13 and 14, separated from the full stroke ratchet 233 by a spacer is a segment gear 339, and separated from this by a spacer is a locking disk 33l The switch cam 389 heretofore described is separated from the locking disk 33!! by another spacer. The elements 231, 329, 3M and 299 are all fixedly mounted on the hub 235. The segment gear 329 is mounted in a very definite relation upon the hub 235 and is provided with diametrically opposite sets of teeth 333 and 335 comprising thirteen teeth each. (See Figure 19.) The locking disc 336 comprises a right and left hand sector 353 and 35l respectively.

ihe center line of the right-hand tooth 3371 of the set 333 is disposed 50 degrees from the vertical center line through the shaft Mill. The center line of the lefthand tooth 339 of set 333 will be disposed 19 degrees and forty minutes to the left of the vertical center line through shaft id'l. The right-hand tooth of the set 335 is diemetrically opposite the tooth 339 and the lefthand tooth 3 413 is diametrically opposite the tooth 331. The teeth of gear 329 are adapted to engage the teeth of a gear 395 which is mounted on a hub 3317 which is adapted to rotate on shaft M5. The gear 335 is provided with a double tooth 3 39, the center line of which is normally disposed at an angle along a line which is 18 degrees above the horizontal "center line of the shaft 365 and is directed toward the shaft ml. The periphery of the sector gear 329 is cut away to clear the double tooth when it is in the position shown in Figure 19.

The locking disk 33f which is mounted on hub 335 (Fig. 9) is disposed in definite relation with respect to the segment gear 339. The leading edge 35E! of the right-hand locking sector 353 (Fig. 19) is disposed at an angle of 56 degrees to the right of a vertical center line passing through the shaft i371. The trailing edge 355 of the left-hand locking sector 351 is disposed at an angle of 81 degrees 48 minutes counter-clockwise from the leading edge 35E. The trailing edge 359 of the sector 353 is diametrically opposite the trailing edge 355 of sector 351i, and the leading edge 36E of the sector 35'l is diametrically opposite the leading edge 35i of the sector 353.

A small locking disk 353 is mounted on the hub 3M and is cut away at 365 to receive the peripheries of the sectors 353 and 351i. The disk 353 is ,positioned on hub 3M so that when the double tooth 3&9 occupies the position described above, the cut-away portion 365 will be centered on a line joining the' centers of shafts 265 and Hi.

It will be apparent that in rotating the shaft I31 180 degrees, by means of the thumb knob 233, the locking segment 35! will pass out from under the cut-away portion 365 of the locking disk 353 and the first tooth 339 of the segment gear 333 will engage the double tooth 399 to rotate gear 335, hub 3M and the other parts attached to said hub. From the time of engagement of tooth 339 with tooth'3fl9 until engagement of the leading edge 35E of the locking segment 353 with the recess 365 of locking disk 363, the gear 345 and the associated elements will have been rotated one complete revolution in a clockwis direction as seen in Figure 19.

Attached to the end of the hub 34'! opposite the gear 345 is a thirty-six tooth gear 361 which is'adapted to drive a forty-tooth gear 369. The

latter gear369 is fixed on one end of a hub 3' which is rotatably mounted on the shaft E31, while a shut-off cam 313 is mounted at the opposite end of said hub an. A spacer till encircles the hub and lies between the elements 393 and tit. A second hub 311 rides freely upon the surface of the spacer 313, and the star wheel 3m heretofore described is fixed to rotate with said hub. The link 333 is, as was described above, pivotally mounted on the pin 325'carried by the star wheel 3th The cam follower till, which was described above as being a part of the arm 395, is disposed in the plane of the shut-0d cam 333 as shown in Figures .9 and 12. The star wheel enga nose til is positioned in the plane of the star wheel 39H so as to engage the teeth 331i thereof.

In operation, as the follower tut is pulled into a notch 319 in the cam 313 by the spring til the element ill will engage the outer end of a tooth 3371 on the star wheel, and since the spring til is more powerful than the spring 3M the star wheel 3m will be rotated clockwise as viewed in Figures 13 and 17. The link 333 will be pulled to the right and the switch lever Edi will be re tated in a counter-clockwise direction as viewed in Figures 13 and 17. The adjusting screw 999 will be pulled away from the tappet 36!] so that spring 3E3 may withdraw the tappet from. engagement with the switch operator 969 and permit the switch to open.

Referring again to Figure 9, a forty-tooth gear 393 is fixed to a hub 335 which is rotatably mounted upon shaft Mill. The front end of the hub 395 bears in an opening 397! in the front name in? and a 500-gallon dial 399 (Figs. 1 and 13) is fixed to rotate with said hub. Part of the face of the dial is colored red as indicated, this being between the 400 and e50-gallon graduations. A spacer 39f may be interposed between the dial ate and the frame ltl to prevent undue friction between the dial and the frame. A collar 393 may be-interposed between the gear 393 and the frame ltl to hold the parts in desired position. The hub 395 is provided with a threaded extension 395 which extends through the gear 395 and receives lock nuts 39 i.

Token ejector her is provided with a downwardly directed open-' ing till which is positioned above a token receiving box M3. The latter is supported in a downwardly depending U shaped element M5 which is fixedly secured to the element 399.

A cylindrical token receiving hopper Ml is mounted on a horizontal plate 409 which is spacedly mounted above the bottom portion of element 399 by meansof projections M9 which enter perforations M2 on the right-hand upright of element 399 as shown in Figure 8, and by means of spacers 409 on the left-hand side of element 399 as shown in Figure 8. The hopper 39! is disposed laterally of the opening Ml. as shown in Figure 10, but on the same transverse center line as shown in Figure 8.

An ejector slide Ml is disposed between the bottom portion of 399 and the plate 409 and is provided with an opening M3 adapted to receive a token. A lever M5 is bent upwardly from the plate 4H and carries a shouldered pin Ml which is adapted to be engaged on one side by a bifurcated link 9, the other end of which is pivotally mounted on the crank pin 23! heretofore described. A spring 42! is suspended between the pin 411 and the crank 23! and is adapted to retain the pin 411 against the closed end of the bifurcation in the link. a

An car 423 is bent inwardly from the front plate 161 and serves to deflect coins dropped from the recess 241 into the hopper. A shield 425 is mounted over the projection 423 and prevents the token from being deflected away from the hopper 401. As shown in Figure 15, the opening 413 in the slide 4 is in registration with the opening at the bottom of the hopper M11 when the slide occupies its maximum left-hand position.

As shown in Figure 10, the opening 4113 is in alignment with the opening 401 in element 399 when the slide occupies its extreme right-hand position.

It will be seen that in the event a token becomes jammed so that the slide M1 cannot move to the right the spring 421 will be stressed, while at the same time, the crank 229 will be permitted to rotate. There can be no possibility of a jam when the slide 41 1 is moving to the left.

The token box 4113 (Figures 1, 8 and 15) is provided with a four-way lock 421 which is held in place in the front plate 429 of the box by means of anut 431. The bolt 433 is adapted to rotate and engage a slot 435 in the element 399 as shown in Figure 15. A deflector 431 is fixed to the righthand end of the box-403 and serves to prevent the piling up of tokens under the opening 401-.

Mounting of device and case Referring to Figure 8, the numeral 111 represents the housing of the dispensing apparatus. The back plate 121 of the predeterminer device is provided with four bosses 439 which are adapted to receive screws 441 which are inserted from the inside of the housing. Bosses 443 are also formed on the back plate and are adapted to receive seal screws 119. The screws 441 and 119 serve to hold the predeterminer mechanism onto the dispensing apparatus housing.

The front and back plates 151-121 are spaced at their upper ends by spacer studs 445 which are fixed in the back plate and which receive screws 441.

The entire apparatus is enclosed in a casing 449 having a door 45l which is hinged to the casing at its upper end at 453. A transverse flange 455 (Figure 8) is adapted to overlap thelower edge 451 of the casing while vertical flanges 459 are adapted to overlap ribs 461 formed on the case. This interfitting flange arrangement serves to seal the lower and side edges of the door against the entrance of water, etc. The door fits over an opening 465 in the casing 449 (Fig. 1).

A transverse recess 463 is formed at the upper edge of the opening 465 to receive the upper edge of the door 451. An inwardly projecting rib 461 is formed on the door and'underlies an inwardly projecting. flange 469 on the casing (see Figure 8).

A lug 411 integral with the door extends inwardly of the casing and is provided with a downwardly extending pin 413. A look 415 is inserted in an opening 411 in the lower side of the casing and is held in place by a nut 419. The lock is provided with a hook shaped bolt 491 which is adapted to engage the pin to prevent the door from being opened by unauthorized persons.

Four bosses 483 are formed on the case 449 and extend inwardly from the portion at the sides of the opening 495. A masking plate 495 is held in position on said bosses by screws 491 which are inserted from the rear of the case.

The rear portion 499 of the case is formed with a recess 499 adapted to receive a weather seal 491 and the back plate. The weather seal is provided with a rounded bead 493 which overlies both the back plate and the case and which is adapted to be compressed against the dispensing apparatus housing when the fastenings described below are drawn up.

-Four bosses 495 are formed on the front plate 161, and the masking plate 495 is held in engagement with the bosses by upper screws 491 and lower screws 499. The latter are seal screws adapted to receive the seal wire 591.

A short tube 503 is fixed into the front plate 151 which is perforated at 504 as shown in Figure 5. The masking plate 495 is perforated at 535 to permit passage of the tube through it. The opening 501 in the tube is of suiiicient diameter to receive a token.

Pins 599 are inserted radially through the tube 503 and fixed in place therein. The pins may be of any suitable length, may be of different lengths and may be spaced at difl'erent intervals about the inner surface of the tube. All of the pins are preferably disposed in the same plane. This structure is similar to that described and claimed Y in the patent to Ardifl, Number 1,995,493, issued March 26, 1935.

A token 51 1, shown in Figure 6, is provided with slots 512 and isadapted to. be received by the selector mechanism shown in Figures 1 and 5. The selector will not receive tokens having slots which do not conform to the pins in length, thickness and spacing by preventing passage thereof into the recesses 241 and 16.

Figure 7 shows a different number of pins inserted in the tube.

Openings 513, 515 are formed in the masking plate 485 in the region of the indicator dials I65 and 399, and frames 5i1, 519 support glass or other transparent material over the openings.

Operatimt-presettinp I depends upon the number of tokens originally placed in the mechanism and upon the number of gallons of liquid taken out since. As shown in Figure 1 this gallonage is fifty and the switch 399 will be closed so that any amount up to flfty gallons can .be delivered, the switch having been closed when the token was inserted, the knob 233 turned. and the shut-oif cam 313 displaced from under the cam follower 291, as shown in Fig. 18. The apparatus illustrated will take up to nine tokens, representing 450 gallons.

Should the pointer '1 99 occupy the area colored red on the dial 389, no tokens should be inserted. A warning to this effect appears on the face of the dial, because insertion of another token would carry the predeterminer back to the switch-off" position. Thus, the inserted tokens would be lost. When the pointer stops in the red area, fluid can be dispensed, whereupon the pointer will be moved by the meter toward successively lower numerals 'as gasoline is dispensed.

If the thumb knob is rotated without the insertion of a token it will come to rest within a shown in Figures 15 value of the nine previously aerated distance of 75 /2 degrees, with the parts in the position shown in full lines in Figure 16 in which the abutment 28d engages the corner ttll. It is to be noted that the full stroke mechanism 2%, Hill is not engaged in this position.

With the parts in the Figure 1 position, a

token tl l which has slots tit which conform with the arrangement of pins 5% in tube Mt will enter the tube and drop down to seat itself in recess Ml (Figures 15 and 16). As the thumb nut is now rotated counter-cloclrwsie, the pawl itil will be cammed counter-clockwise by engagement of the token with surface 2% on the pawl, and the corner till will pass the abutment its. The full stroke ratchet ttl will thereupon be engaged by the pawl its and the thumb lrnob cannot be returned to the token receiving posi tion.

It should also be noted that the pawl tttl engages the last tooth on the upper sector of the full stroke ratchet to position the recess in alignment with the tube htl as is clearly shown in Figure 15.

After the full stroke mechanism is engaged, a slight additional movement of shaft lill will bring the cam its (Figures 15 and 22) to the position in which it will have raised its follower Edi to its maximum height. This will hold the switch actuating lever tt'l in the switch ofi position.

Rotation of shaft Hill, as described, will also rotate the segment gear 532% and engage the first tooth till thereof with the double tooth pinion will which has twelve regular teeth and one double tooth. The same rotation will also move the locking segment 215i out of engagement withthe locking disk the on the same hub as gear t lt so that the latter is free to rotate.

Since the segment tilt has thirteen teeth and the gear 3% has in sheet thirteen teeth, one passage of the segment tilt will rotate gear ttlt one complete revolution, whereupon the locking seg ment 353 will engage the locking disk 3% and hold the shaft motionless.

This rotation of gear tilt is transmitted to thirty-six tooth gear ttl and thence to fortytooth gear 369 so that the hub t'll and shut-off cam t'ld will be rotated four-fifths of a turn in a counter-clockwise direction (Figures 13, 17 and 18). This rotation of the cam positions the notch are 36 degrees to the right of the position of Figure 17 as shown in Figure 18.

The above described rotation of cam tit serves also to cam the follower Zll'll out of the notch did so that it will ride on the periphery of the cam. The element M l will be withdrawn from the star wheel because levers tilt and N9 are lined together side by side. The former carries the latter. The star wheel 3M does not move because it is held inposition by switch lever 2% which in turn is latched by lever 2M.

A forty-tooth gear 383 which is connected to the indicator dial 3% will be rotated in a clockwise direction (Figures 1 and 13) nine-tenths of a revolution and will come to rest with the pointer I99 indicating 0.

As rotation of shaft l3l continues, the token will be cammed out of recess 24'l by its engage ment with the pin 253 and the token will drop onto ear 423 (Figure 8) and be deflected into the hopper 401. The deflector 425 prevents the token from bouncing out of the hopper or away from the ear 423.

At the same time, as the cam 289 passes the position shown in Figure 15, the follower 28! will drop into notch HI and spring 3M will move switch arrn ttl clockwise to force push rod til into the switch box and close switch till.

Likewise, the full stroke ratchet 23? moves out of engagement with pawl 2% which now becomes a limit stop for aligning the tube-Wt and recess tllll as indicated above.

A number of tokens up to nine may be inserted in succession, and after each tolren is inserted the thumb lrnob and associated parts must be actuated through the cycle described above. At each operation the notch hit in cam lllltl will be positioned an additional 36 degrees clockwise away from the pawl tilt, and the dial ililtl will be moved correspondingly in a counterclockwise direction.

Should it be attempted to insert a token at a time while the motor is running the above de scribed cycle will be gone through with the modification that the cam its and lever ttl will be eflective to open switch iltll, which in the previous description was already in the open conditlon.

It should also be mentioned that the reason for timing the cam its and lever ttl to be eflec tive to cut oh the switch tilt only after the full stroke ratchet and pawl are engaged is that, ii the switch could be opened and, closed at will by manipulating the thumb knob and without the insertion of the token, the motor could be started and stopped without going through the resetting cycle of the mechanism disclosed in Figure 20, and consequently, this mechanism would be of no practical use The switch 399 must be opened before the cam tilt is moved far enough to earn up its follower to close switch Mil and must be kept open until the shut-0E cam tilt has been completely actuated so as to preventan improper presetting of be accomplished between these points.

said cam.

Operation-predetermininy (Figures 12, 17 and 18) is to move only one-tenth of a revolution for every fifty gallons, it is apparent that a 500 to 1 reduction in speed must This is accomplished by making gear are a twelve-tooth gear, setting up the following train of gears:

No. teeth Total reduction 10 to l.

50 to l.

to 1 step tooth.

500-to 1. Carries follower 207.

6O 50t0 1 153 24 6 tol 155 48 100 to 1(ldler) 157 24 50 1 Thus for each fifty revolutions of gear in pointer ltd makes one revolution.

The shaft I91 which carries pointer l99 which cooperates with the SOD-gallon dial 389 is driven I from forty-tooth gear ISI by a forty-tooth gear I93 so that it makes one revolution in every five hundred-revolutions of gear I2I.

The gear I53 which has twenty-four teeth drives gear 223 which has twenty-four teeth through an idler gear 2I9, and consequently, the crank 229 makes one revolution for every fifty revolutions of gear I2I.

To operate the dispensing apparatus the operator must operate the reset shaft 47 to reset the registering mechanism l3 to zero. This, as previously explained, frees the lever 33 for manual upward operation to close the switch 29, and the motor I1 and pump I5 are set into operation so that liquid may be dispensed from the nozzle 21.

Upon completing a dispensing operation, the lever 33 will be drawn down to the Figure 1 position and the nozzle will be hung up on the lever. This completes a dispensing cycle of the apparatus.

As liquid is dispensed, the meter drives the a flexible shaft by means of the gearing I5, 03, etc.,

and the gear I23 is advanced one revolution for every gallon dispensed. At the same time, the

pointer IE3 is continually advanced in a clockwise direction with respect to dial I65, as viewed in Figure 1, to indicate the portion of a 50-gallon unit which remains 'to be dispensed.

Similarly, the pointer I 99 is advanced onetenth of a revolution for each revolution of the pointer I63. The transfer which is eifected by the step tooth gear Ill and gear I8l is timed to occur when the pointer I63 passes from the zero to about the 48-gallon mark. Thus the sum of the readings on the dials will always represent the total number of gallons for which the predetermining mechanism is preset.

The indicators as shown inFigure 1 indicate that one token has been inserted and-that the machine is preset for fifty gallons.

If desired, the pointer I99 may be set just slightly to the right of the zero mark to indicate that the reading is fifty instead of zero. This may be done by loosening the set screw in hub I95 (Figure 9) androtating the pointer to the desired degree.

As liquid is dispensed the cam follower 201 is advanced in a clockwise direction as shown in Figures 1, 17 and 18. It will advance one revolution for every five hundred revolutions: of gear I23 and hence once in every 500 gallons. If, during dispensing, the liquid delivered equals the preset amount, the follower will come into registration with the notch 319 in the cam and the spring 2 (Figure 11) will draw the follower into the notch.

The relation between the cam follower 201 and the notch in the shut-oil cam, and between the step tooth gear I'll and the mutilated gear IBI, is preferably such that the follower 201 will drop into the notch on the shut-off cam shortly before the last tooth on the step tooth gear I ll completes the passage of the associated said set of teeth on the gear I8I. Accordingly, a slight addi-' tional movement of the step tooth gear I II will bring the locking disk I69 into locking relation with the gear I8I.

Since the lever 209 is connected with lever 205, and since spring 2Il is stronger than the spring 30I on the switch operating lever 291, 2I I (Figures 12, 1'7 and 18) will be drawn down into engagement with a tooth 321 of the star wgie'el 38! and will rotate it clockwise on the hub 3 l.

the point This movement of the star wheel is transmltted by link 323 to the lower end of lever 291 and will rotate the lever in a counter-clockwise direction about the pivot 203. Suchrotation will free the plunger 3 (Figure 13) which will be withdrawn from switch box 301 by means of spring 3" and the switch 309 will accordingly be opened to stop the motor I1.

The circuit diagram shown in Figure 21 shows how the switch controls the motor. The switch 303 is a single pole switch and is preferably inserted in the hot side of the line.

The coin ejector lever 229 is timed with relation to the 50-ga1lon pointer I63 so that the token will be ejected from hopper 401 into the token box 403 at the time the pointer approaches the zero position on the 50-gallon dial. Thus the tokens are retained in a position where they are not accessible by either the person who inserted them into the machine or by a collector who has access to the token receiver until substantially the entire amount of liquid represented by the token has been dispensed. 4

It should be noted that the lock 421 on the token receiver and the lock it in the fill pipe plug are both four-way locks. These are preferably matched so as to be opened by the same key. and if desired, this key can be made in two interiitting parts so that the presence of the holders of both parts is required in order to open either of the locks.

It is to be understood that the predetermining device need not of necessity be mounted on the housing of the dispensing apparatus. Th flexibl shaft may be extended to any suitable point and the wiring connections to switch 309 may also be extended to such a point. Thus a remote control unit is within the scope of this application.

It is apparent that applicants have provided a system and apparatus which enables an owner of an inventory of liquids to distribute these liquids to a number of tanks which may be widely separated, which may be located on premises The system also gives control of the different I liquids which may comprise the inventory by providing means for selecting the particular tokens which will serve to permit operation of the dispensing unit. In other words, one form 'of token selector may be used on the Ethyl grade, in the case of gasolines, while a different selector is used on the Regular" and Low grade gasolines.

Similar selectors may be used on all of the dispensers in a group handling the same grade of gasoline for the same wholesaler throughout a particular area. The area or group may be determined either by the range of operations of the wholesaler or by wholesale prices or by other considerations. This selection of tokens is necessary to prevent irregular traflic in the tokens after they have been sold by the wholesaler.

In addition, the tokens may be provided with a code number which may be used to indicate the wholesaler who has issued the tokens and only the meter be sealed to insure that no liquid is,

removed before it has passed through the meter, or ii liquid is removed, evidence of such removal will be left.

The token itself may be formed with a signature of the owner of the inventory thereon so that any attempt to duplicate the token will be punishable under Federal counterfeiting laws.

The token may represent gallons or other units of liquid as described above or it may represent a predetermined money value of liquid. The device may be designed to use coins instead of tokens if desired.

It is intended that the term liquid dispensing apparatus be not limited to the usual filling station pump but should be considered sufficiently broad to include a metering system or apparatus for use in handling any type of fluid, whether liquid or otherwise.

It is apparent that various changes may be made in the size, form, construction and arrangement of parts without departing from the spirit or the invention; and accordingly, applicants do not desire to be limited to the specific forms herein described by way of illustration, but instead, desire protection falling reasonably within the scope of the appended claims.

What we claim to be new and desire to protect I by Letters Patent of the United States is:

1. An apparatus for dispensing liquid comprising a receptacle containing said liquid, a conduit communicating with said receptacle, a dis-' gization of said means, a meter driven by liquid flowing through said conduit, mechanism driven by said meter for moving said device to inoperative position, check controlled means for moving said device to operative position and manually operable dispensing control means released by dispensing movement of the nozzle and connected with said flow producing means for rendering said liquid flow producing means efiective and inefiective at will when said device is in operative position.

2'. In an apparatus for dispensing liquid, means to produce a flow of said liquid, manually operated means for regulating the liquid flow, a device movable from an inoperative to an operative position for controlling the energization of said fiow producing means, a meter driven by the liquid flow, mechanism driven by said meter for moving said device to inoperative position, token controlled .means for moving said device to operative position and additional manually controlled means co-operating with said device for rendering said flow producing means effective and ineffective at will when said device is in operative position, said additional manually controlled means operative only when the said flow regution of said means, a meter driven by liquid flow- I ing through said conduit, mechanism driven by said meter for moving said device toward inoperative position as a predetermined amount of liquid is being dispensed, means for moving said device to operative position, shut-oft means for preventing said operative movement, check controlled means for releasing said shut-off means,

and manually controlled means co-operating with said device for rendering said flow producing means efiective and ineflective at will when said device is in operative position.

4. An apparatus iordispensing liquid comprising a locked receptacle containing said liquid, a conduit communicating with said receptacle, means to produce a flow of said liquid through said conduit, a device movable from an inoperative to an operative position for controlling the flow producing means, a meter driven by liquid flowing through said conduit, mechanism driven by said meter for moving said device to inoperative position, check controlled means for moving said device to operative position, said check controlled means being capable of receiving and holding a plurality of checks, means associated with said check, controlled means and operated by the meter for, individually releasing a check upon the passage of a predetermined amount of liquid through the meter, and manually controlled means co-operating with said device for rendering said flow producing means effective and ineffective at will when said device is in operative position.

5. An apparatus for dispensing liquid comprising a receptacle containing said liquid, a conduit communicating with said receptacle, means to produce a flow of said liquid through said conduit, an electric switch movable from open to closed position for supplying energy to said means, means to control the switch, a meter driven by liquid flowing through said conduit, mechanism driven by said meter to operate said control means to open the switch, check controlled means operating in conjunction with the switch control means for moving said switch to closed position, manually controlled means cooperating with said switch for rendering said flow producing means efiective and ineifective at will when said switch is in closed position.

6. An apparatus for dispensing liquid comprising a receptacle containing said liquid, a conduit communicating with said receptacle, means to produce a flow of said liquid through said conduit, an electric switch movable from open to closed position for supplying energy to said means, means to control the switch, a meter driven by liquid flowing through said conduit, stop mechanism driven by said meter to operate said control means to open the switch, a power means controlled by said stop mechanism for moving said switch to open position, check controlled means operating in conjunction with the switch control means for moving said switch to closed position and manually controlled means co-operating with said switch for rendering said fiow producing means effective and ineffective at to produce a flow of said liquid through said con-' duit, a device movable from an inoperative to an operative position for controlling the energization of said means, a meter driven by liquid flowing through said conduit, mechanism driven by the meter to operate said control means to stop-the flow, a credit posting element movable to any one of a number of stop positions, check controlled means for moving said device to operative position and also moving the credit posting element, manually controlled means co-operating with said device for rendering said first named means eflective and ineffective at will when said device is in operative position, and an auxiliary shut-oil! means operable during part of the credit posting movement for moving said device to inoperative position.

9. An apparatus for dispensing liquid comprising a receptacle containing said liquid, a conduit communicating with said receptacle, means to produce a flow of saidliquid through said conduit, a device movable from an inoperative to an operative position for controlling the energization of said means, a meter driven by a liquid flowing through said conduit, stop and stored power mechanisms for moving said device to inoperative position, said stop mechanism including a credit posting element movable to any one of a number oi stop positions, said stored power mechanism being driven by the meter toward the stop position during liquid flow, check controlled means for moving said device to operative position and also moving the credit posting element, manually controlled means co-operating with said device for rendering said first named means effective and inefl'ective at will when said device is in operative position, and an auxiliary shut-oil means operable at the beginning oi the credit posting movement for moving said device to inoperative position, the device remaining in such inoperative position until completion of the credit posting movement.

10. An apparatus for dispensing liquid comprising a receptacle containing said liquid, a conduit communicating with said receptacle, means to produce a flow of said liquid through said conduit, a device movable from an inoperative to an operative position for controlling the en-' ergization 01' said means, means to regulate the flow, a meter driven by liquid flowing through said conduit, a resettable register driven by the meter, mechanism driven by the meter to operate said control means to stop the flow, a credit posting element movable to any one 01' a number oi! stop positions, check controlled means for moving said device to operative position. manually controlled means co-operating with said device for rendering said flow producing means efiective and ineffective at will when said device is in operative position, an interlocking apparatus adapted to prevent operation 01' said manually controlled means to start the flow until said register has been reset, an auxiliary ated with the credit posting element and arranged to become effective before the auxiliary shut-oi! moves said device.

11. In an apparatus for dispensing liquid, a pump to produce a flow of said liquid, a device movable from an inoperative to an operative position for controlling said flow, a meter driven by the liquid flow, mechanism driven by the meter for moving said device to inoperative position, check controlled means for moving said device to operative position, and manually operable dispensing control means connected with said pump for rendering said pump repeatedly operative and inoperative at will when said device is in operative position.

12. An apparatus for dispensing liquid comprising a receptacle containing said liquid, a conduit communicating with said receptacle, means to produce a flow or said liquid through said conduit. a device movable from an inoperative to an operative position for controlling the flow, a meter driven by liquid flowing through said conduit, a resettable register driven by the meter, mechanism driven by the meter to operate said control means to stop the flow, said mechanism including a credit posting element movable to any one or a number of stop positions, check controlled means for moving said device to operative position, manually controlled means connected with said device for rendering said flow producing means effective and ineffective at will when said device is in operative position, an interlocking apparatus adapted to prevent operation of said manually controlled means to start the flow until said register has been reset, an auxiliary shut-oil means for moving said device to inoperative position, and full stroke means associated with the credit posting element and arranged to become effective before the auxiliary shut-ofl moves said device and to remain effective until the credit posting movement has been completed, said auxiliary shut-oil holding said device in inoperative position in the meantime.

13. In an apparatus for dispensing liquid, means to produce a flow of said liquid, 9. device movable from an inoperative to an operativ position for controlling the energization of said means, a meter driven by liquid flow, mechanism driven by the meter to operate said control means to stop the flow, a credit posting element movable to any one of a number of stop positions, check controlled means for moving said device to operative position and also moving the credit posting element, and manually controlled means connected with said device for rendering said first named means eflective and ineffective at will when said device is in operative position, the credit posting element being operable at will by the check controlled means to set up further credits and postpone the automatic operation of the stop mechanism.

14. An apparatus for dispensing liquid comprising a locked receptacle containing said liquid, a conduit communicating with said receptacle, means to produce a fiow of said liquid through said conduit, a device movable from an inoperative to an operative position for controlling the 15. In an apparatus for dispensing liquid,

means to produce a flow of said liquid, a device movable from an inoperative to an operative position for energizing said means, a meter driven by liquid flow, mechanism driven by said meter for moving said devic to inoperative position, and check controlled means for moving said device to operative position, said means including a sector gear, a locking sector associated therewith, a credit posting cam, and means connecting the cam, gear and locking sector for ad,

vancing said cam a predetermined distance for credit posting purposes and thereupon locking the same.

16. An apparatus for dispensing liquid comprising a receptacle containing said liquid, a conduit communicating with said receptacle, means to produce a flow of said liquid through said conduit, a device movable from an inoperative to an operative position for controlling the energization of said means, a meter driven by liquid flowing through said conduit, mechanism driven by said meter for moving said device to inoperative position, check controlled means for moving said device to operative position, manually controlled means connected with said device for rendering said first named means effective and inefiective at will when said device is in operative position, and means connected to the check controlled means for indicating the number of unexpended checks in the apparatus and also indicating when th apparatus is full of unexpended checks.

17. In an apparatus for dispensing liquid, means to produce a flow of said liquid, a device movable from an inoperative to an operative position for-controlling ,the energization of said means, a meter driven by liquid flow, mechanism driven by said meter for moving said device to inoperativ position, check jcontrolled means for moving said. device to operative position, an indicator connected to be advanced a predetermined distance for each operation of the check controlled means and a pointer driven by the meter and movable over the indicator to reduce the reading on the indicator.

18. In an apparatus for dispensing liquid, means to produce a flow of said liquid, a device movable from an inoperative to an operative position for controlling the energization of said means, a meter driven by liquid ilow, mechanism driven by said meter for moving said device to inoperative position, check controlled means for moving said device to operative position, an indicator connected to be advanced a predetermined distance for each operation of the check controlled means and a pointer driven by the meter and movable over the indicator to reduce the reading on the indicator, said pointer being driven intermittently, another pointer continuously driven by the meter and a fixed indicator for the last named pointer.

19. An apparatus for dispensing liquid com- I prising a receptacle containing said liquid, a conduit communicating with said receptacle, means toproduce a flow of said liquid through said conduit, a device movable from an inoperative to an operative position for controlling the flow, a meter driven by liquid flowing through said conduit, a resettable register driven by the meter, mechanism driven by said meter to operate said control device to stop the flow, check controlled means for moving said device to operative position, manually controlled means connected with said device for rendering said flow producing means effective and ineffective at will when said device is in operative position, and an interlocking apparatus adapted to prevent operation of said manually controlled means to start the flow until the register has been reset. I

ROBERT H. DAMON.

CLARENCE F. ROGIER.

JOHN W. BAUR.

THOMAS E. KULO. 

